Trigger mechanism for firearms.



T. C. JOHNSON.

TRIGGER MECHANISM FOR FIREARMS.

APPLICATION FILED JAN. 9. H9.

Patented Mar. 18,1919.

UNITED STATES PATE T onnron.

THOMAS C. JoHNsoN, on NEW HAVEN, CONNECTICUT, AssIGNoRro WINCHESTER lREPEA-IING .ARMs 00., on NEW HAVEN, CONNECTICUT, A .oonroRAmoN.

TRIGGER MECHANISM FOR FIREARMS.

Specification of IiettersIatent. liaf efited 11:11. 18, 1 919.

Applieationfiled January 9, :1919; Serial 'No. 270,384.

To all whom it mayconcerm' Be it known that I, THoMAs C. JOHNSON, a citizen of the United "States, residing at New Haven, in .the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Trigger Mechanism for Firearms; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings consti-- tute part of this application, and represent, m

Figure 1 a broken View partly in vertical section and partly in side elevation, of a firearm trigger-mechanism constructed in accordance with my invention.

Fig. 2 a view in vertical transverse section on the line 22 of Fig. 1.

Fig. 3 an enlarged View in vertical longitudinal section of the trigger.

My invention relates to an improvement in trigger-mechanisms for firearms, the object being to simplify and cheapen the construction of such mechanisms.

With these ends in view, my invention consists in a trigger-mechanism for firearms, having certain details of construction as will be hereinafter described and pointed out in the claims.

In carrying out my invention as herein shown, the trigger 3 is hung upon a pivot 4: passing transversely through the guard 5 which is formed with an integral fingerloop 6 inclosing and protecting the said trigger the forward end of which is formed with a sear-nose 7 engaging with sear-n0tches 8 formed in the rounded lower end of a hammer 9 hung upon a pivot 10 also mounted in the said guard. For normally maintaining the sear-nose 7 in engagement with the hammer, I form the trigger with a cylindrical upwardly opening hole 11 extending down into it from its upper edge at a point directly to the rear of its pivot 4. This hole receives a helical trigger-spring 12 the upper end of which abuts against a transversely arranged stop-pin 13 mounted in the said guard and discharging the two-fold function of holding the spring in place and acting as a stop to limit the upward movement of the rear end of the trigger, which is formed for this purpose with a transversely arranged semi-circular seating-recess 14 intersecting the upper end ofthe upwardly opening hole 11, the recesses receiving the pin '13 when the same is acting asa stop-pin for the trigger as described. For the reception of the trigger 3 and the lower end of the hammer 9, the guard 5 is formed with an upwardly opening horizontal cut or deep slot 15 which also opens downwardly at 16 into the finger-loop 6, the pivots 4 and 10 and the stop-pin 13 extending transversely across this slot. The construction described is not only simple and cheap, but very convenient in the matter of assemblance and disassemblance.

I claim 1. In a firearm, a trigger formed at the rear of its pivot with an upwardly opening hole, a helical trigger-spring located in said hole, and a transversely arranged stop-pin mounted in the arm and extending above the trigger in position to form an abutment for the upper end of the said spring and also acting as a stop to limit the upward motion of the rear end of the trigger.

2. In a firearm, a trigger formed at the rear of its pivot with an upwardly opening hole leading into a semi-circular transverse trigger-stop recess, a helical trigger-spring located in said hole, and a transversely arranged stop-pin mounted in the gun and ex tending above the trigger in position to form an abutment for the upper end of said spring and to co-act with the said transvers trigger-stop recess to limit the upward movement of the rear end of the trigger.

3. In a trigger mechanism for firearms, the combination with a guard having a deep longitudinal slot for the reception of the trigger mechanism, of a hammer entering the said slot and pivotally mounted in the said guard, a pivotally mounted trigger located in the said slot, co-acting directly with the said hammer and formed at a point to the rear of its pivot with an upwardly opening hole, a helical trigger spring located in the said hole, and a transversely arranged stop-pin mounted in the said guard and extended across the slot thereof in position to form an abutment for the upper end of the said spring and to limit the upward movement of the rear end of the trigger.

4. In a trigger mechanism for firearms, the combination with a guard having a deep longitudinal slot for the reception of the trigger-mechanism, of a hammer entering the hammer and termed at apoint tjo'the rear of its pivot With an upwardly opening hole intersected at its upper end bya transverse recess, a helical trigger spring located in above the trigger in positien to form an abutment for the: upper end of said spring 7 the "said hole, and a transversely arranged V V stop-pin mounted inthe gun andextendlng Witnessesz said slot and pivbtally mounted in the guard, and to c'o- 'aet x vith thesaid'recess in" the trig "a pivotally m ounted trigger located n tldej said s10t',: coaeting directly' withwhe"said; rear end thereof.

ger tbflirnit the upward mgvement of the In testimeny-"I tion in the have signed this specifica- THOMAS QK H -SQN.

ERIK S. PAflMER, DA IEL H, ;VEADE I presence of two subscribing Witfinesse/SJ. is

'.Copies 91 tliis patent niafi be mineafoi five eents each; addressing theeCemniissieiier effatents,

= Washington, 

